WBCS.LIVE practice question

Consider the following statements. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction. II. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled. III. In a nuclear reactor, all operating reactors are ‘critical’, while there is no question of ‘critically’ in case of a nuclear bomb. IV. Nuclear reactors do not use moderators, while nuclear bombs use them. Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is/are correct?

Solve this multiple-choice question and check the correct answer with its explanation below.